Initial commit of basic working Debug Toolbar (that needs a lot of CSS and JS love)

1 files changed, 73 insertions, 0 deletions

diff --git a/debug_toolbar/toolbar/loader.py b/debug_toolbar/toolbar/loader.py
new file mode 100644
index 0000000..4c3efa2
--- /dev/null
+++ b/debug_toolbar/toolbar/loader.py
@@ -0,0 +1,73 @@
+"""
+The main DebugToolbar class that loads and renders the Toolbar.
+"""
+class DebugToolbar(object):
+
+    def __init__(self):
+        self.panels = []
+        self.panel_list = []
+        self.content_list = []
+    
+    def load_panels(self):
+        """
+        Populate debug panel lists from settings.DEBUG_TOOLBAR_PANELS.
+        """
+        from django.conf import settings
+        from django.core import exceptions
+
+        for panel_path in settings.DEBUG_TOOLBAR_PANELS:
+            try:
+                dot = panel_path.rindex('.')
+            except ValueError:
+                raise exceptions.ImproperlyConfigured, '%s isn\'t a debug panel module' % panel_path
+            panel_module, panel_classname = panel_path[:dot], panel_path[dot+1:]
+            try:
+                mod = __import__(panel_module, {}, {}, [''])
+            except ImportError, e:
+                raise exceptions.ImproperlyConfigured, 'Error importing debug panel %s: "%s"' % (panel_module, e)
+            try:
+                panel_class = getattr(mod, panel_classname)
+            except AttributeError:
+                raise exceptions.ImproperlyConfigured, 'Toolbar Panel module "%s" does not define a "%s" class' % (panel_module, panel_classname)
+
+            try:
+                panel_instance = panel_class()
+            except:
+                continue # Some problem loading panel
+
+            self.panels.append(panel_instance)
+
+    def render_panels(self):
+        """
+        Renders each panel.
+        """
+        for panel in self.panels:
+            div_id = 'djDebug%sPanel' % (panel.title().replace(' ', ''))
+            self.panel_list.append('<li><a title="%(title)s" href="%(url)s">%(title)s</a></li>' % ({
+                'title': panel.title(),
+                'url': panel.url() or '#',
+            }))
+            self.content_list.append('<div id="%(div_id)s" class="panelContent"><h1>%(title)s</h1>%(content)s</div>' % ({
+                'div_id': div_id,
+                'title': panel.title(),
+                'content': panel.content(),
+            }))
+
+    def render_toolbar(self):
+        """
+        Renders the overall Toolbar with panels inside.
+        """
+        self.render_panels()
+        template = """
+            <div id="djDebugToolbar">
+                <ul id="djDebugPanelList">
+                    %(panels)s
+                </ul>
+                %(contents)s
+            </div>
+        """
+        context = {
+            'panels': ''.join(self.panel_list),
+            'contents': ''.join(self.content_list),
+        }
+        return template % context